• Dr. Joseph Gordian Atat Department of Physics, University of Uyo, Uyo
  • Sunday Ekpo Department of Physics, University of Uyo, Uyo, Nigeria
  • Akankpo A. O. Department of Physics, University of Uyo, Uyo, Nigeria
  • Akpan, V. E. Department of Physics, University of Uyo, Uyo, Nigeria
  • Essien, I. E. Department of Physics, University of Uyo, Uyo, Nigeria
Keywords: Dose, Ionizing, Radiation, Rice-farm, Absorbed, Hazardous and Limit


An assessment of absorbed surface dose rate of ionization radiation in swamp rice field in Ekoi Ubom and Ekoi Ikot Nyoho Ini Local Government Area, Akwa Ibom State, Nigeria was carried out with the aid of diligert survey meter with serial number 60030. We have noted the latitude and longitude as well as the elevation of 11 locations (LT1 to LT11) in Ini using the Global Positioning System (GPS). Contour maps have been generated using Surfer 16 software for easy interpretation. The result of highest annual equivalent dose rate computed is in LT4 with ionizing radiation level of 0.52596µSv/yr. The mean of all locations annual average equivalent dose rate amount to (0.242260 ± 0.035064)µSv/yr. This value is not close to the maximum permissible dosage of 1mSv/yr and 20mSv/yr for the general public and occupational workers (farmers) in the study area respectively, meaning that the study area is not hazardous as far as nuclear radiation is concerned.


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Ademola, J. A. (2008). Exposure to high background radiation level in tin mining area of Jos Plateau State, Nigeria. Journal of Radialogy Prot., 28:93 - 99.

Agbalagba, E. O. & Meindinyo, R. O. K. (2013). Radiological Impact of Oil Spillage on Production Land in Niger Delta Region. International Journals of Environmental Sciences, 5(3): 102 – 106.

Anyakohoa, M. W. (2000). New School Physics for Senior Secondary School. (Revised Edition) p. 446.

BSS (2012). Revised International Basic Safety Standards on Protection against Ionizing Radiation – Overview and Key Changes. Malaysia: International Atomic Energy Agency

CGIAR Science Council (2008). Report of the 5th External Program and Management Review of Africa Rice Center (WARDA). Rome, Italy: Science Council Secratariat.

Esu, E. O., Okereke, C. S. & Edet, A. E. (1999). A Regional Hydrostratigrahic Study of Akwa Ibom State, Southeastern Nigeria. Global Journal of Pure and Applied Sciences, 5(1):89 – 96.

Flakus, F. N. (1981). Detecting and Measuring Ionizing Radiation – A short History. International Atomic Energy Agency Bulletin, 23(4): 31 – 36.

Gilmore, G. R. (2008). Practical Gamma-Ray Spectrometry. 2nd Ed. Hoboken, New Jersey, USA: John Wiley and Sons.

Huether, S. E. & Mc Cance, K. L. (2016). Understanding Pathophysiology, 6th edition. St. Louis, Missouri: Elsevier. P 530.

ICRP (1990). Assessing Dose of Representative Person for the Purpose of Radiation Protection of the Public and the Optimization of Radiological Protection: Broadening the Process, 10: 13 – 63.

ICRP (2013). Radiation and your Patient: a Guide for Medical Practitioners. A Web Module Produced by Committee 3 of the International Commission on Radiological Protection.

Marilyn, E. & Magurie, J. (1995). Radiation Protection in Health Science, 1st Edition. Singapore: World Scientific Publishing, pp. 296 – 316.

Mc Collough, C. H. & Schueler, B. A. (2000). Educational Treatise – Calculation of Effective Dose. Medical Physics, 27(5): 828 – 837.

Meindinyo, R. O. K., Agbalagba, E. O. & Olali, S. A. (2017). Radiation Emission Levels from Monitor Screens of some Residential and Office Electronic Equipment within a University Community in Nigeria. IOSR Journal of Applied Physics, 9(3): 43 – 46.

Meindinyo, R. O. K., Agbalagba, E. O. & Olali, S. A. (2017b). Assessment of Radionuclide Contents in some common Brands of Cement used in Nigeria. ISOR Journals of Research and Method in Education, 7(5): 114 – 119.

NAFDAC (2019). Food Irradiation Regulations by National Agency for Food and Drug Administration and Control

Ogundele, F. O., Utin, E. A., Iwara, A. I., Njar, G. N. & Deekor, T. N. (2012). An assessment of non-timber forest products (NTFPs) utilization on rural livelihoods in Ini local government area of Akwa Ibom State, Nigeria. Journal of Biodiversity and Environmental Sciences (JBES), 2(8): 1 – 13.

Olugbenga, O. & Christopher, E. (2015). Geological Setting, Compositional and Economic Appraisal of Clay-Shale Occurrence in Itu-Mbonuso/Iwere Area, South-Eastern Nigeria. Journal of Geography and Geology, 7(1): 85 – 96.

Udo, A. A. & Agabi D. A. (2019). Geoelectric Investigation of Groundwater Potentials in Ini Local Government Area of Akwa Ibom State, Nigeria. Journal of Research and Innovations in Engineering, 4(1): 59 – 70.

UNSCEAR (2001). Hereditary Effects of Radiation. A report to the General Assembly, with Scientific Annex.

How to Cite
Atat, J., Ekpo, S., Akankpo A. O., Akpan, V. E., & Essien, I. E. (2020). DOSIMETRY OF IONIZING RADIATION IN SWAMP RICE FARM IN EKOI UBOM AND EKOI IKOT NYOHO, INI LOCAL GOVERNMENT AREA. IJRDO-Journal of Applied Science, 6(3), 08-18.